Answer:
The number of marbles does Tommy will get is 18 .
Explanation:
Given as :
The total number of marbles share between Tommy and Robbie = 48
The marbles were distributed between then in the ratio 3 : 5
Let the number of marbles does Tommy have = 3 x
The number of marbles does Robbie have = 5 x
Now,
According to question
The total number of marbles share between Tommy and Robbie = 48
Or, the number of marbles does Tommy have + The number of marbles does Robbie have = 48
Or, 3 x + 5 x = 48
Or, 8 x = 48
∴ x =

I.e x = 6
So, the number of marbles does Tommy have = 3 × 6 =18
The number of marbles does Robbie have = 5 × 6 = 30
Hence the number of marbles does Tommy will get is 18 . Answer